M62463AFP
Dolby Pro Logic Surround Decoder
REJ03F0275-0200
Rev.2.00
Jun 16, 2008
Description
The M62463AFP is a single chip Dolby Pro Logic surround decoder. This LSI has all of required functions for Dolby
Pro Logic surround.
Note: Dolby and the double-D symbol are trademarks of Dolby laboratories licensing corporation. San Francisco,
CA94103-4813, USA.
This device available only to licensees of Dolby Lab.
Licensing and application information may be obtained from Dolby Lab.
Features
•
Includes all functions necessary for Dolby Pro Logic surround
⎯
Adaptive matrix
⎯
Input auto-balance
⎯
Noise sequencer
⎯
Center mode control ON/OFF, WIDE/NORMAL/PHANTOM
⎯
Modified Dolby B type noise reduction
⎯
4 channel (Lch/Rch/Cch/Sch) / 3 channel (Lch/Rch/Cch)
⎯
Digital delay Delay time: 15.4 to 51.2 ms
•
Cch/Sch master volume: 0 to –87 dB / 1 dB step, –∞
•
3-lines MCU control
•
Space surround such as Disco, Hall and Live
•
Digital echo for Karaoke function Delay time: 123,184 ms
•
Current control oscillation circuit for system clock
System Configuration
M62463AFP
Lch IN
Input
auto-
balance
control
S'
Noise
sequencer
L
Lch
OUT
Rch
OUT
Center
master
volume
Surround
master
volume
Adaptive
matrix
R
C
Center/
operating
mode
control
Rch IN
Master
volume
Lch
Rch
L
−
R
L+R
2
7 kHz
LPF
Modified
S
Dolby
B-NR
Cch
OUT
Sch
OUT
CENTER
SURROUND
MIC IN
Digital delay
MCU interface
DATA SCK REQ
REJ03F0275-0200 Rev.2.00 Jun 16, 2008
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